<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body onload="startTime()"><!-- //事件会在加载完网页后立即发生 -->
<h1>使用计时时间制作钟表</h1>
<div id="txt"></div>
<h2> 计时器</h2>
	<form>
	<input type="button" value="开始计时！" onclick="timedCount()" id="beginBut">
	<input type="text" id="txt1">
	<input type="button" value="停止计时！" onclick="stopCount()" id="stopBut">
	</form>



<script type="text/javascript" src="jsday04.js"></script>
</body>
</html>